# Documentation

## Library

Physical Signals/Functions

## Description

The PS Add block outputs the sum of two input physical signals:

$y={u}_{1}+{u}_{2}$

where

 `u1` Physical signal at the first input port `u2` Physical signal at the second input port `y` Physical signal at the output port

## Dialog Box and Parameters

The PS Add block has no parameters.

## Ports

The block has two physical signal input ports and one physical signal output port.